Steam-generator.



R. L. DAILEY.

STEAM GENERATOR.

APPLICATION FILED MAR. a. 1915.

Patented Nov. 23, 1915.

3 SHEETS-SHEET 1.

WITNESSES: INI/EIVTO COLUMBIA PLANMRAPH co.,WAsl-|mG'roN n c R. L DAILEY.

STEAM GENERATOR.

APPLICATION FILED MAR. 8. I915.

l 1 6 1 9 1 99, Patented Nov. 23, 1915.

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R. L. DAILEY.

STEAM GENERATOR- APPLICATION FILED MAR. 8. 1915.

Patented Nov. 23, 1915.

3 SHEETS-SHEET 3- purrnn erase ranivr ration.

RUSSELL L. BAILEY, OF KANSAS CITY, MISSOURI.

STEAM-GENERATOR.

Application filed Mama 8,

To all whom it may concern:

Be it known that I, RUssnLL L. DAILEY, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Steam-Generators, of which the following is a specification. v

This invention relates to steam generators and its object is the production of a boiler furnace which will operate eiliciently and economically, can be readily controlled so as to produce steam in volume sufficient to meet different weather conditions, and which is of simple and compact construction.

With this object in view, the invention consists in certain novel and peculiar fea tures of construction and organization as hereinafter described and claimed; and in order that it may be fully understood reference is to be had to the accompanying drawings in which v Figure 1, is a central vertical section of a boiler furnace embodying my invention,

' taken on the line 1-1 of Fig. 2. Fig. 2, is a horizontal section taken on the line 11-11 of Fig. 1. Fig. 3, is an irregular horizontal section taken on the line III- III of F 1. Fig. 4, is a vertical section taken on the dotted line IV of Fig. 2. Fig. 5, is a vertical section taken on the dotted line V of Fig. 2. Fig. 6, is a vertical section taken on the line VIVI of'Fig. 3. i

In thesaid drawings, in which like reference characters identify corresponding parts in all the figures, 1 indicates the circular base of the furnace, and 2 the lower or ash pit section of the shell, the same being mounted on the base and provided with a door opening 3, a door 4 of any suitable type, and a draft damper 5 adapted for oporation by a suitable chain 6, as customary.

The section 2 which is preferably a cast section is provided with a plurality of inwardly projecting lugs 7, provided with cross grooves 8 in their upper edges, the section having circular openings 9 in the vertical planes of said lugs. A series of quadrant shaped grate sections which collectively constitute the grate of the furnace, are identified by the character 10, and are each provided with a cylindrical arm or stub shaft 11, which extends radially of the furnace through one of said openings 9 and rests upon the adjacent lug 7, and to prevent endwise movement of the grate sections Specification of Letters Patent.

Patented Nov. 23, 1915.

are slipped into position from within the furnace, in an inverted position and are then rotated to upright position to cause their segments 12 to engage the cross grooves.

'Mounted upon the outer end of each arm or stub shaft 11 is a crank 13, provided near 111811131361 end with a handle 14:, and said cranks arediametrically reduced at their upper extremities to form pins 15 for engagement with perforations in the ends of the links 16. The drawing shows all of the cranks 13 connected by links 16, so that the rocking of one of the cranks will result in imparting rocking movement to all of the grate sections. If desired a single grate section may be rocked, provided the connected link is detached therefrom, or a pair of the grate sections may be simultaneously operated by disconnecting the intermediate link. Mounted upon the ash pit section 2 is the fire pot or combustion chamber 17 ofthe furnace, and said section is made hollow to provide a water chamber 18. The upper end of the section 17 "slopes downwardly and inwardly as at 19, chiefly to facilitate the entrance of coal into the combustion chamber and upon the grate, the sloping of the said upper end incidentally avoiding the production of a space at thetop of the section 17 into which the flames from the fuel may not penetrate.

20 is, a depending flange fitting snugly within the section 2 to prevent lateral movement or displacement of section 17, and at its upper end the said section is provided with aneXternal rib 21, for a purpose which is hereinafter explained.

22 is a cast bracket secured externally to section 17, provided in its outer wall with a socket 23 wherein the handle 14 of the ad jacent crank 13may be slipped, for the purpose of guarding against accidental turning or tilting of the grate section or sections, and said casting is also provided with an upstanding pin 24, upon which maybe conveniently fitted the end of the adjacent link 16, so as to form a temporary support for the latter, while the handle 14 is-being operated, it being of course understood that this disposition of the link is only made when it is desired to operate a single section of the grate. Formed upon the upper end of the section 17 are lugs 25, provided with a passage 26, for a purpose which hereinafter appears. 7

Arranged vertically above the fire pot section 17 is a broken steam ring 27, the central opening of which flares upwardly by preference, the space 28 between the ends of said ring being provided for the admission of the fuel, supplied through a door opening hereinafter mentioned. To support the steam ring and guard against lateral displacementthereof, it is preferably provided with a plurality of depending lugs 28 engaging sockets 28 formed in the upper end of section 17 andsaid steam ring is also provided with depending lugs 29 corresponding in form and location to and resting upon the lugs 25 of the section 17, passages 30 in the bottom of the "ring extending also through the said depending lugsand establishing "communication between the steam ring and the waterchamber of section 17.

are threaded studs mounted at their lower ends in the lugs 25 of the section 17 and extending up through the steam ring engaged at :theirupper ends by clamping nutsf32, which bear upon thesteam ring and thus clamp the same in fixed relationto section 17, the steam ringbeing cast witha circular Wall 33 bridging the steam ring chamber and fitting around the threaded s'tuds, these walls thus guarding against the escape of steam or water fro1n the steam ring, around the said threaded studs.

Thesteam ring isprovidednear its inner wall withiash'allow channel 34, and at a suitable point is provided with a hollow extension 35 which isconnected by a water gage 36 to. the .lower end of the water chamber 18', the water gage beingw equipped with the customary controlling valves 37. This a er g ge s, Of cour e, t cate h depth of water in chamber 18. 38 is a pipe secured to extension 35 and communicating therewith, the function of sa d'pipe' e ng tolconv y s eam. o a ser s of radiators or other heating apparatus;

I 39is, the upper section of the shell of the furnace, the same snuglyembracingthe upper end of section l7 and resting upon rib 21 thereof, and said shell isprovided with w an openingthrough which the extension 35 projects, as clearly appears'in Fig. 5. The shell is also provided with a fuel door opening 40, controlled by a suitable door 41, it being noticed that this door is opposite the broken portion or space 28 of the steam ring, and that fuel inserted through this opening and placed upon the inclined upper end of section 17, will gravitate into the. the pot. The shell 39 is also provided with one or more openings 42 above the plane of the opening 40, and said openings 42 are controlled by doors 43.

Arranged in superposed relation within and centrally of the shell is a series of circular generating rings 44 provided with de pending feet 45 to rest upon the underlying rings, and each ring is provided with a radial partition 46, which partitions preferably stand in vertical alinement. Each ring is preferably provided with bridge pieces 47 for stiffening purposes. Each ring is also provided with a peripheral opening 48, adjacent its partition, and the same is true of the steam. ring 27, and said openings occupy a staggered relation so as to communicate with adjacent rings at opposite sides of their respective partitions. The rings are also provided with a staggered series of discharge openings 49 extending through low walls 49*, rising from the bottom of the rings and depending lugs50, and all of the rings, except the topmost one and including the'steam ring 27, are provided with receiving openings 51 registering with the discharge openings 49 of the overlying generating rings, the openings 51 extending through lugs 52 which are fitted to lugs 50 with a water tight relation, threaded studs 53 extending upward from the underlying rings and through the overlying rings in the mannerdescribed, in connection with the bolts '31 connecting the steam ring 27 with the fire pot section 17, it being noted that circular walls 54 surround the threaded studs within the rings, to guard against the escape of water or steam around said studs.

Arranged vertically above the series of generating rings is a hollow dome 55, the same resting upon the upper end of the shell and having a central passage 56, closed at its upper end by a door 57 The passage 56 extends radially outward, and may be increased in height, as shown in Fig. 1, in order to accommodate a large combustion pipe 58, the latter fitting on a sectional collar 59 fitting in the .outer end of passage 56, and for purposes of regulation the top, wall of the passage 56 is provided with a check damper 6Q adapted to be operated bya chain, not shown.

61 is a water service pipe controlled by a valve 62, and connected by pipes (53 and 64 respectively, tothe chamber of the steam dome, and the chamber of the fire pot sec tion, a valve 65 controlling the supply of water to said chamber 18.

In the horizontal planes of the steam ring 27 and generating rings 44, the service pipe 61 is provided with'lateral branch pipes 66 which extend through the, shell 39 and are secured at their inner ends in the openings 48 of the said rings, and said branch pipes are controlled by valves 67. By this arrangement of pipes and valves, it will be seen that water can be supplied to any one or more of the generating rings, and that it can also. be supplied to the. hollow dome, the steam ring 27 and the chamber 18. To indicate the quantity of water in the steam dome.

the latter is provided with a Water gage 68 controlled by the customary valves 69. Water produced by condensation in theradiators or steam pipes is adapted to be returned through return pipes 70 and discharged thereby into the chamber of the dome, and in the event that the water gage 36 indicates an excess quantity of water in the fire pot chamber 18, the pressure of steam in ring 2'? may be utilized to force water from said chamber 18 into the dome chamber, by way of pipe 71, which pipe is normally closed by a valve 7 As an auxiliary means for supplying fuel to the grate, I provide the furnace with a vertical magazine 73, which is preferably suspended centrally from the top wall of the dome and terminates in about the plane of the top of the fire pot section, the door 57 forming a closure for the upper end of said magazine.

74 is a ring mounted upon the'topmost generating ring, and 75 are semi-circular plates or valves which rest upon said ring 74 and adapted to be adjusted inward and fit with a substantially air tight connection 7 around the magazine 73. When in this position the upper end of the central. passage or space formed by the generating rings is closed. ill his is the normal condition of the furnace, as the semi-circular plates are only withdrawn or opened when firing, so as to permit smoke to pass directly up into the chamber 56 and escape thence through the combustion pipe 58.

The fuel for starting the fire in the furnace is introduced through opening 40 but after the fire is burning freely the fuel will be supplied through the magazine 73 so as to avoid the necessity of recharging the furnace at frequent intervals.

To operate the boiler furnace, valve 62 is opened to supply water to the dome chamber to the desired depth as shown by gage 68, and valve 65 is opened to supply water to the fire potchamber or water jacket 18, the supply being cut off before such chamber is completely filled as may be determined by a glance at the water gage 36. Preferably valves 62 and 65 are both closed at this time. After the furnace has been in operation for a sutficient length of time to warm the water in such chambers, valve 67 is opened to admit water to the steam ring, if only a small volume of steam is needed. If more steam is needed, the valve 67 of one or more of the generator rings is opened. If the full capacity of the furnace is desired all of the valves 67 may be opened. The particular order in which the valves 67 are opened or the number of such valves which are opened will be determined by the engineer or person in charge and the most satisfactory method of handling the furnace to produce the required volume of steam will be acquired as the result of experience, though when the furnace is running at full capacity it is preferred that the water shall be supplied directlyto the generator rings only and not to the steam ring, it being of course understood that the water which is supplied to the generator rings and the steam ring will preferably come from the steam dome chamber because of the preliminary heating of such water. From time to time additional water will be supplied to the steam dome.

The water supplied to the various steam rings at one side of the partitions a7 thereof will. spread out over the bottom of the rings in a thin sheet and overflowing the walls or raised portions 49 therein, will flow down into the next ring below, this action of course occurring with each ring and the water eventually passing into the steam ring where it may accumulate sufliciently to barely cover the bottom thereof. During this flow of water, the generation of steam occurs in all of the rings until the pressure is such that the steam passes downward w1th the water and eventually into the steam ring from which the steam passes up through pipe 38 and thence through the steam coils or radiators of the building in the usual manner water of condensation flowing back through the return pipe 70 into the steam dome. It will thus be seen that a complete circulation is established as the steam dome is in uninterrupted communication with any one or more of the generating rings, and that the supply of water may be augmented from time to time by opening the valve 62, as hereinbefore stated. With the construction described the maximum radiation surface is obtained, as the products of combustion play upon the under side of the steam' ring and completely envelop the generating rings, it being noticed that the cen tral space or passage inclosed by the steam ring and also each of the generating rings, flares upward so that the bottom of each ring shall overlap the edge of the opening of the ring below it. As a result the products of combustion passing up through said opening will impinge directly upon the overlying ring, part of such products being then deflected outwardly under such ring and the remaining products of combustion passing upwardly and again in effect splitting on the inner lower edge of the next ring and so on. The products of combustion are thus caused to travel outwardly under each ring above the steam ring and then vertically upward between said rings and the shell 39, and after clearing the topmost ring and said products are caused to travel inwardly over the topmost ring to reach the discharge passage 56, and in this travel it impinges directly upon the bottom of the dome chamber 55 and, of course, in passing through passage 56 the inner wall of the dome chamber is heated. It will thus be seen that most of the heat units produced are utilized in theheating of the water and in the generation of the latter into steam, it being, of course, understood-that the shell will be externally covered with insulation, not shown, to guard ,againstloss of heat by external radiation therefrom, this insulation being omitted as 110 common property and not forming a part of this invention. In the event that an excess quantity of water is supplied to the water jacketchamber, the attendant will note .that the gage 61 is completely filled, he

1 will then open valve 72 to permit the pressure of steam in the steam ring to force water from the water jacket through pipe 71 and up into the steam dome chamber, said valve being. closed after the water level in the water jacket has. dropped to the ole-- 0- serve the rightto make all changes falling within the spirit and scope of the appended I. claims.

I cla1m: 1. A boiler furnace having a combustion chamber at its lower end and a discharge passage at its upper end, a water supply =-..pipe,- a valve controlling the'passage of 1Wat8I' therethrough, a series of superposed communicating generating rings within the i furnace, a pipe connecting the supply pipe i sbeyond the said valve with the upper ring of mSEtlCl series, a steam ring between the gen- -erating rings and the combustion chamber and communicating with the former, a steam pipe leading from the steam ring, and a return pipe in communication with the sup- }ply pipe between the valve thereof and the series of generating rings.

2. A boiler'furnace having a combustion -chamber at its lower end and a water heating chamber and a discharge passage for products of combustion at its upper end, a --water supply pipe, communicating with the i water chamber, a valve controlling the water nsupply pipe beyond its point of communication with said chamber, a series of super- Tposed communicating generating rings within the furnace, a pipe connecting the supply pipe with said water chamber and the upper Oring of said series, a steam ring between the generating rings and the combustion chamber and communicatlng with the former, a steam pipe leading from the steam ring, and a return pipe in communication with the said water chamber.

3. A boiler furnace having a combustion chamber at its lower end and a dome having a water chamber and a discharge passage, at its upper end, a series of superposed communicating generating rings within the furnace, a steam ring between the combustion chamber and said generating rings, and communicating with the latter, a water supply pipe connected to the water chamber of the dome and to the upper ring of said series of rings, a valve controlling said supply pipe beyond its point of connection with said dome and generating rings, a steam distributing pipe connected tothe steam ring, and a return pipe connected to the steam dome chamber; said combustion chamber having a water jacket in communication with the steam ring and valve controlled communication with the water chamber of the dome.

4. A boiler furnace having a combustion chamber at its lower end and a discharge passage at its upper end, a water supply pipe, a valve controlling the same, a series of superposed communicating generating rings within the furnace, valve controlled branch pipes connecting the water supply pipe beyond said valve with the generating rings, a steam ring between the generating ring and the combustion chamber and communicating with the former, a steam pipe leading from the steam ring, and a return pipe in communication with the water supply pipe between the valve thereof and the series of generating rings.

5. In a boiler furnace, a shallow hollow generator ring provided with an internal partition, an intake opening and a discharge opening; the discharge opening being in the bottom of the ring and said bot tom having a raised portion around the said discharge opening over which the water must rise to effect its escape through said discharge opening.

6. In a boiler furnace, a steam ring having an inlet opening in its upper side, a channel in its bottom, and a discharge opening through said bottom, the said bottom having a low wall surrounding the said discharge opening; said ring having an extension provided with openings in the bottom and top thereof.

In testimony whereof, I ailix my signature in the presence of two witnesses.

RUSSELL L. DAILE Y.

Witnesses:

H. C. Ronenns, G. Y. THORPE.

, Qopies of :this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

